Not sure if this is what you need.... but....it is the teaching of the Catholic Church that in the Eucharist the appearance is quite unchanged, but the basic reality has become the body and blood of Christ.
The change from bread and wine to a presence of Christ that is true, real, and substantial is called transubstantiation.
Answer: d. Sounds
Explanation:
According to Bruno Netti on Ethnomusicology, Music is diverse. It always expresses a subtext determined by culture, class, gender and personality and by a society's idea of music. Evidenced by the different genres of music we have.
Alan Merriam's three part model on music suggests that music is a phenomenon that consists of three sides; sound, behaviour and ideas.
So therefore for music to be understood, it should be studied as a group of sounds, as behaviour that leads to these sounds, and as a group of ideas or concepts that govern the sound and the behaviour.